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* *: use loglevel to control what gets logged instead of output redirection This stops logrus from doing all the formatting just to discard it immediately afterwards. * logflags: replace default formatter of logrus The default formatter of logrus emits logs in two different formats depending on whether or not the output is going to a terminal. The output format for non-terminals is indented to be machine readable, but we mostly read logs ourselves and the excessive quoting makes that format unreadable. When outputting to terminals it uses ANSI escape codes unconditionally, without checking whether the terminal it is connected to actually supports colors. This commit replaces the default formatter with a much simpler formatter that always uses a more readable format, doesn't use colors and places the key-value pairs at the beginning of the line (which is a better match for how we use them). * cmd/dlv: add command line options to redirect logs Adds two options, --log-to-file and --log-to-fd, to redirect logs to a file or to a file descriptor. When one of those two options is specified the "API server listening at:" message will also be redirected to the specified file/file descriptor. This allows clients that want to use the "API server listening at:" message to do so even if they want to redirect the target's stdout to another file or device. Implements #1179, #1523
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dlv version
Prints version.
Synopsis
Prints version.
dlv version
Options inherited from parent commands
--accept-multiclient Allows a headless server to accept multiple client connections. Note that the server API is not reentrant and clients will have to coordinate.
--api-version int Selects API version when headless. (default 1)
--backend string Backend selection:
default Uses lldb on macOS, native everywhere else.
native Native backend.
lldb Uses lldb-server or debugserver.
rr Uses mozilla rr (https://github.com/mozilla/rr).
(default "default")
--build-flags string Build flags, to be passed to the compiler.
--headless Run debug server only, in headless mode.
--init string Init file, executed by the terminal client.
-l, --listen string Debugging server listen address. (default "localhost:0")
--log Enable debugging server logging.
--log-dest string Writes logs to the specified file or file descriptor. If the argument is a number it will be interpreted as a file descriptor, otherwise as a file path. This option will also redirect the "API listening" message in headless mode.
--log-output string Comma separated list of components that should produce debug output, possible values:
debugger Log debugger commands
gdbwire Log connection to gdbserial backend
lldbout Copy output from debugserver/lldb to standard output
debuglineerr Log recoverable errors reading .debug_line
rpc Log all RPC messages
fncall Log function call protocol
minidump Log minidump loading
Defaults to "debugger" when logging is enabled with --log.
--wd string Working directory for running the program. (default ".")
SEE ALSO
- dlv - Delve is a debugger for the Go programming language.